为Spring Boot配置第二个独立的LdapTemplate

时间:2018-09-26 15:15:17

标签: spring spring-boot ldap spring-ldap

我需要在现有代码库中添加第二个LdapTemplate。 LDAP目录完全不同,什么也不共享。

其他人似乎也有类似的需求:https://github.com/spring-projects/spring-ldap/issues/409。我找到了Multiple LDAP repositories with Spring LDAP Repository,并添加了第二组LDAP配置条目作为spring.ldap2.和这个附加的Config类:

@Configuration
public class LdapConfig {
    @Autowired
    private Environment environment;

    @Bean(name = "ldapProperties2")
    @ConfigurationProperties(prefix = "spring.ldap2")
    public LdapProperties ldapProperties() {
        return new LdapProperties();
    }

    @Bean(name = "contextSource2")
    public LdapContextSource contextSourceTarget(@Qualifier("ldapProperties2") LdapProperties ldapProperties) {
        LdapContextSource source = new LdapContextSource();
        source.setUserDn(ldapProperties.getUsername());
        source.setPassword(ldapProperties.getPassword());
        source.setBase(ldapProperties.getBase());
        source.setUrls(ldapProperties.determineUrls(this.environment));
        source.setBaseEnvironmentProperties(
                Collections.<String, Object>unmodifiableMap(ldapProperties.getBaseEnvironment()));
        return source;
    }

    @Bean(name = "ldapTemplate2")
    public LdapTemplate ldapTemplate(@Qualifier("contextSource2") LdapContextSource contextSource) {
        return new LdapTemplate(contextSource);
    }
}

Boot抱怨:

Parameter 0 of constructor in org.springframework.boot.autoconfigure.ldap.LdapAutoConfiguration required a single bean, but 2 were found:
    - ldapProperties2: defined by method 'ldapProperties' in class path resource [my/company/foo/LdapConfig.class]
    - spring.ldap-org.springframework.boot.autoconfigure.ldap.LdapProperties: defined in null

我试图添加@Primary,但是也可以将其添加到我的课程中,并且所有现有代码已经使用“旧”主模板。不幸的是,没有@Second

编辑

我做了更多尝试:

@Autowired
@Qualifier("ldapTemplate1")
LdapTemplate ad;

@Autowired
@Qualifier("ldapTemplate2")
LdapTemplate gd;

第一个bean:

@Bean(name="ldapTemplate1")
public LdapTemplate ldapTemplate(@Qualifier("contextSource1") LdapContextSource contextSource) {
    return new LdapTemplate(contextSource);
}

第二个豆:

@Bean(name = "ldapTemplate2")
    public LdapTemplate ldapTemplate(@Qualifier("contextSource2") LdapContextSource contextSource) {
        return new LdapTemplate(contextSource);
    }

然后Spring Boot对此抱怨:

Field ad in com.example... required a bean of type 'org.springframework.ldap.core.LdapTemplate' that could not be found.
    - Bean method 'ldapTemplate' in 'LdapDataAutoConfiguration' not loaded because @ConditionalOnMissingBean (types: org.springframework.ldap.core.LdapOperations; SearchStrategy: all) found beans of type 'org.springframework.ldap.core.LdapOperations' ldapTemplate2
    - User-defined bean method 'ldapTemplate' in 'LdapConfiguration2'

即使我将两者中的一个重命名为LdapTemplate,Spring Boot也无法自动接线。

如何自动配置两个独立的LdapTemplate?我正在使用Spring Boot 2.0.5

1 个答案:

答案 0 :(得分:0)

这是我在使用Spring 4和Spring LDAP的Tomcat 8.5上部署的应用程序中使用的方法。

beans.xml

<beans:bean id="contextSource-one"
    class="org.springframework.ldap.pool2.factory.PooledContextSource">
    <beans:constructor-arg>
        <beans:bean class="org.springframework.ldap.pool2.factory.PoolConfig"
        p:testOnBorrow="true" p:minEvictableIdleTimeMillis="300000" p:maxWaitMillis="5000" />
    </beans:constructor-arg>
    <beans:property name="contextSource">
        <beans:bean
            class="...ContextSource"...>
        </beans:bean>
    </beans:property>
    <beans:property name="dirContextValidator">
        <beans:bean
            class="org.springframework.ldap.pool2.validation.DefaultDirContextValidator" />
    </beans:property>
</beans:bean>

<beans:bean id="contextSource-two"
    class="org.springframework.ldap.pool2.factory.PooledContextSource">
    <beans:constructor-arg>
        <beans:bean class="org.springframework.ldap.pool2.factory.PoolConfig"
        p:testOnBorrow="true" p:minEvictableIdleTimeMillis="300000" p:maxWaitMillis="5000" />
    </beans:constructor-arg>
    <beans:property name="contextSource">
        <beans:bean
            class="...ContextSource"...>
        </beans:bean>
    </beans:property>
    <beans:property name="dirContextValidator">
        <beans:bean
            class="org.springframework.ldap.pool2.validation.DefaultDirContextValidator" />
    </beans:property>
</beans:bean>

适应您的需求和/或转换为Java配置。

这里是依赖类,几乎和您一样:

public class MyClass {
    private List<LdapTemplate> ldapTemplates;

    @Autowired
    public MyClass(List<ContextSource> contextSources) {
        this.ldapTemplates = new LinkedList<>();
        for (ContextSource cs : contextSources)
            this.ldapTemplates.add(new LdapTemplate(cs));
    }
}